diff options
Diffstat (limited to 'drivers/staging/iio/light/tsl2x7x.h')
| -rw-r--r-- | drivers/staging/iio/light/tsl2x7x.h | 91 |
1 files changed, 47 insertions, 44 deletions
diff --git a/drivers/staging/iio/light/tsl2x7x.h b/drivers/staging/iio/light/tsl2x7x.h index 28b0e7fdc9b8..1097ee890ce2 100644 --- a/drivers/staging/iio/light/tsl2x7x.h +++ b/drivers/staging/iio/light/tsl2x7x.h @@ -1,79 +1,85 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Device driver for monitoring ambient light intensity (lux) * and proximity (prox) within the TAOS TSL2X7X family of devices. * * Copyright (c) 2012, TAOS Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __TSL2X7X_H #define __TSL2X7X_H struct tsl2x7x_lux { - unsigned int ratio; unsigned int ch0; unsigned int ch1; }; /* Max number of segments allowable in LUX table */ -#define TSL2X7X_MAX_LUX_TABLE_SIZE 9 +#define TSL2X7X_MAX_LUX_TABLE_SIZE 6 /* The default LUX tables all have 3 elements. */ #define TSL2X7X_DEF_LUX_TABLE_SZ 3 #define TSL2X7X_DEFAULT_TABLE_BYTES (sizeof(struct tsl2x7x_lux) * \ TSL2X7X_DEF_LUX_TABLE_SZ) +/* Proximity diode to use */ +#define TSL2X7X_DIODE0 0x01 +#define TSL2X7X_DIODE1 0x02 +#define TSL2X7X_DIODE_BOTH 0x03 + +/* LED Power */ +#define TSL2X7X_100_mA 0x00 +#define TSL2X7X_50_mA 0x01 +#define TSL2X7X_25_mA 0x02 +#define TSL2X7X_13_mA 0x03 +#define TSL2X7X_MAX_TIMER_CNT 0xFF + /** - * struct tsl2x7x_default_settings - power on defaults unless - * overridden by platform data. - * @als_time: ALS Integration time - multiple of 50mS - * @als_gain: Index into the ALS gain table. - * @als_gain_trim: default gain trim to account for - * aperture effects. - * @wait_time: Time between PRX and ALS cycles - * in 2.7 periods - * @prx_time: 5.2ms prox integration time - - * decrease in 2.7ms periods - * @prx_gain: Proximity gain index - * @prox_config: Prox configuration filters. - * @als_cal_target: Known external ALS reading for - * calibration. - * @interrupts_en: Enable/Disable - 0x00 = none, 0x10 = als, - * 0x20 = prx, 0x30 = bth - * @persistence: H/W Filters, Number of 'out of limits' - * ADC readings PRX/ALS. + * struct tsl2x7x_settings - Settings for the tsl2x7x driver + * @als_time: Integration time of the ALS channel ADCs in 2.73 ms + * increments. Total integration time is + * (256 - als_time) * 2.73. + * @als_gain: Index into the tsl2x7x_als_gain array. + * @als_gain_trim: Default gain trim to account for aperture effects. + * @wait_time: Time between proximity and ALS cycles in 2.73 + * periods. + * @prox_time: Integration time of the proximity ADC in 2.73 ms + * increments. Total integration time is + * (256 - prx_time) * 2.73. + * @prox_gain: Index into the tsl2x7x_prx_gain array. + * @als_prox_config: The value of the ALS / Proximity configuration + * register. + * @als_cal_target: Known external ALS reading for calibration. + * @als_persistence: H/W Filters, Number of 'out of limits' ALS readings. + * @als_interrupt_en: Enable/Disable ALS interrupts * @als_thresh_low: CH0 'low' count to trigger interrupt. * @als_thresh_high: CH0 'high' count to trigger interrupt. + * @prox_persistence: H/W Filters, Number of 'out of limits' proximity + * readings. + * @prox_interrupt_en: Enable/Disable proximity interrupts. * @prox_thres_low: Low threshold proximity detection. - * @prox_thres_high: High threshold proximity detection - * @prox_pulse_count: Number if proximity emitter pulses - * @prox_max_samples_cal: Used for prox cal. + * @prox_thres_high: High threshold proximity detection. + * @prox_pulse_count: Number if proximity emitter pulses. + * @prox_max_samples_cal: The number of samples that are taken when performing + * a proximity calibration. + * @prox_diode Which diode(s) to use for driving the external + * LED(s) for proximity sensing. + * @prox_power The amount of power to use for the external LED(s). */ struct tsl2x7x_settings { int als_time; int als_gain; int als_gain_trim; int wait_time; - int prx_time; + int prox_time; int prox_gain; - int prox_config; + int als_prox_config; int als_cal_target; - u8 interrupts_en; - u8 persistence; + u8 als_persistence; + bool als_interrupt_en; int als_thresh_low; int als_thresh_high; + u8 prox_persistence; + bool prox_interrupt_en; int prox_thres_low; int prox_thres_high; int prox_pulse_count; @@ -84,9 +90,6 @@ struct tsl2x7x_settings { /** * struct tsl2X7X_platform_data - Platform callback, glass and defaults - * @platform_power: Suspend/resume platform callback - * @power_on: Power on callback - * @power_off: Power off callback * @platform_lux_table: Device specific glass coefficents * @platform_default_settings: Device specific power on defaults * |